Modern Family's boneheaded-but-insightful son Luke (Nolan Gould) visited Ellen this week to announce his graduation from high school. But wait -- isn't he only 13?

Turns out, he's a bona fide genius, with a Mensa membership and an IQ of 150:

Over the summer I did a lot of studying and I took an exam and tested at high school, so I'm hopefully going to go on and do some online community college courses.

When Gould visited Ellen in January, he revealed that he likes to discuss nuclear fusion in household microwaves, and that his allowance is a paltry $30 a week, with the rest of his income being squirreled away for college.

"I am Paul Blazek, age 10, and I like to make things out of polymer clay with my brothers. I have 5 brothers but really only Caleb, age 8, helps so far. I like Lord of the Rings and my Dad reads it aloud to us almost every night."